/* ===== 后台管理样式 ===== */

/* ===== 布局 ===== */
.admin-body {
    display: flex;
    min-height: 100vh;
    padding-top: 0;
    background: #F3F4F6;
}

/* ===== 侧边栏 ===== */
.sidebar {
    width: 240px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 200;
    transition: width 0.3s ease;
}

.sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-logo {
    font-size: 24px;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.4);
    padding: 8px 16px 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.nav-item.active {
    background: rgba(212, 163, 115, 0.1);
    color: var(--sidebar-active);
    border-left-color: var(--sidebar-active);
}

.nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: 11px;
    padding: 1px 6px;
    border-radius: 10px;
}

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}

/* ===== 主内容区 ===== */
.admin-main {
    flex: 1;
    margin-left: 240px;
    min-height: 100vh;
}

.admin-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-header h1 {
    font-size: 20px;
    font-weight: 600;
}

.admin-content {
    padding: 24px;
}

/* ===== 页面区域 ===== */
.page-section {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.page-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 巡查照片网格 ===== */
.patrol-photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.patrol-photo-item {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.patrol-photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.patrol-photo-info {
    padding: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

/* ===== 统计卡片 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat-change {
    font-size: 12px;
    margin-top: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ===== 面板卡片 ===== */
.panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-title {
    font-size: 16px;
    font-weight: 600;
}

.panel-body {
    padding: 20px;
}

/* ===== 表格 ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.data-table th {
    background: #F9FAFB;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:hover td {
    background: #F9FAFB;
}

.data-table .actions {
    display: flex;
    gap: 8px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: #244a3e;
    box-shadow: 0 2px 8px rgba(45, 90, 75, 0.3);
}

.btn-secondary {
    background: #F3F4F6;
    color: var(--text);
}

.btn-secondary:hover {
    background: #E5E7EB;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #b54242;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px;
    min-width: 32px;
    justify-content: center;
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #fff;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 90, 75, 0.1);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ===== 开关 ===== */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #D1D5DB;
    border-radius: 24px;
    cursor: pointer;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    animation: scaleIn 0.2s ease-out;
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    border-radius: 4px;
    transition: background 0.2s;
}

.modal-close:hover {
    background: #F3F4F6;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ===== 标签页 ===== */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.tab:hover {
    color: var(--text);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ===== 空状态 ===== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.empty-state-text {
    font-size: 14px;
}

/* ===== 工具条 ===== */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.toolbar-spacer {
    flex: 1;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 8px 12px 8px 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    width: 200px;
    transition: border-color 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
}

/* ===== 通知 Toast ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    padding: 12px 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideIn 0.3s ease-out;
    min-width: 250px;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }
.toast-info { border-left: 4px solid var(--info); }

/* ===== 座位图编辑器 ===== */
.seatmap-editor {
    background: #F9FAFB;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 24px;
    min-height: 400px;
    position: relative;
}

.seatmap-classroom {
    position: relative;
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
}

.seatmap-board {
    background: #2D5A4B;
    color: #fff;
    text-align: center;
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 24px;
    font-weight: 600;
}

.seatmap-door {
    position: absolute;
    background: #D4A373;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.seatmap-door.front {
    top: -16px;
    left: 8px;
}

.seatmap-door.back {
    bottom: -16px;
    left: 8px;
}

.seatmap-grid {
    display: grid;
    gap: 8px;
    padding: 16px 0;
}

.seat-cell {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 8px;
    text-align: center;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.seat-cell:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(45, 90, 75, 0.15);
}

.seat-cell.occupied {
    background: var(--primary-light);
    border-color: var(--primary);
}

.seat-cell.selected {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.seat-cell.aisle {
    background: transparent;
    border: 1px dashed #D1D5DB;
    color: var(--text-secondary);
}

/* ===== 监控页面 ===== */
.monitor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.monitor-room-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.monitor-room-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.monitor-room-preview {
    background: #1A2F28;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.monitor-room-preview.offline {
    background: #374151;
}

.monitor-room-status {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}

.status-online {
    background: rgba(16, 185, 129, 0.2);
    color: #10B981;
}

.status-offline {
    background: rgba(201, 76, 76, 0.2);
    color: #C94C4C;
}

.monitor-room-info {
    padding: 12px 16px;
}

.monitor-room-name {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
}

.monitor-room-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: 12px;
}

/* ===== 对讲终端 ===== */
.intercom-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.intercom-room-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.intercom-room-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.intercom-room-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.intercom-room-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.intercom-room-status {
    font-size: 13px;
    margin-bottom: 16px;
}

.intercom-room-status.status-online { color: var(--success); }
.intercom-room-status.status-offline { color: var(--text-secondary); }

/* ===== 视频播放器 ===== */
.video-container {
    position: relative;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
    font-size: 24px;
    color: rgba(255,255,255,0.15);
    pointer-events: none;
    white-space: nowrap;
    font-weight: 600;
}

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-container:hover .video-controls {
    opacity: 1;
}

.video-timer {
    color: #fff;
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    margin-left: auto;
}

/* ===== 评分 ===== */
.rating-stars {
    display: flex;
    gap: 4px;
}

.rating-star {
    font-size: 24px;
    cursor: pointer;
    color: #D1D5DB;
    transition: color 0.15s, transform 0.15s;
}

.rating-star:hover {
    transform: scale(1.2);
}

.rating-star.active {
    color: #F59E0B;
}

.rating-star.half::after {
    content: '★';
    position: absolute;
    color: #F59E0B;
    width: 50%;
    overflow: hidden;
}

/* ===== 照片上传 ===== */
.photo-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.photo-upload-zone:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.photo-upload-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.photo-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 1;
}

.photo-item img,
.photo-canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* 防下载：禁止拖拽、选择、右键 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    pointer-events: none; /* Canvas 不响应任何鼠标事件 */
}

/* Canvas 容器：拦截所有交互 */
.photo-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 1;
    /* 禁用右键菜单 */
    -webkit-touch-callout: none;
}

/* 防截图遮罩（半透明，打印时显示） */
.photo-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    pointer-events: none;
}

.photo-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: 8px;
    color: #fff;
    font-size: 12px;
}

/* ===== 打印：隐藏照片防止打印泄露 ===== */
@media print {
    .photo-item,
    .photo-canvas,
    .photo-item-overlay {
        display: none !important;
    }
    .photo-grid::before {
        content: '安全策略：照片禁止打印';
        display: block;
        text-align: center;
        padding: 40px;
        color: #999;
    }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    .sidebar-title,
    .nav-section-title,
    .nav-item span:not(.nav-icon),
    .nav-badge,
    .sidebar-footer {
        display: none;
    }
    .sidebar-header {
        justify-content: center;
        padding: 16px 8px;
    }
    .nav-item {
        justify-content: center;
        padding: 12px;
    }
    .admin-main {
        margin-left: 60px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}